Facts and evidence? I explained to you my reasoning. If you disagree with it fine. Let me ask you, why do you think this is happening all of a sudden? To "vet" foreigners? Yeah right. As I said, if we wanted weed out undesirable foreigners, we would want them to post freely on social media with any fear of repercussion. We wouldn't warn them about potentially having their social media scrutinized.
You should back up this assertion with facts and evidence otherwise nobody will take it at face value and it will be categorized as drivel.